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// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
desc: Variable binding is initialized to `undefined` in outer scope
template: eval-func
info: |
B.3.3.3 Changes to EvalDeclarationInstantiation
[...]
a. If declaredFunctionOrVarNames does not contain F, then
i. If varEnvRec is a global Environment Record, then
[...]
ii. Else,
i. Let bindingExists be varEnvRec.HasBinding(F).
ii. If bindingExists is false, then
i. Perform ! varEnvRec.CreateMutableBinding(F, true).
ii. Perform ! varEnvRec.InitializeBinding(F, undefined).
[...]
---*/
//- setup
var init, changed;
//- before
init = f;
f = 123;
changed = f;
//- teardown
assert.sameValue(init, undefined, 'binding is initialized to `undefined`');
assert.sameValue(changed, 123, 'binding is mutable');
assert.throws(ReferenceError, function() {
f;
}, 'global binding is not created');
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